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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: How to avoid unreferenced objects (mutexes etc)
Date: 13 Jan 2002 15:08:44 +0000
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Date: 2002-01-13T15:08:44+00:00
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"Nick Roberts" <nickroberts@adaos.worldonline.co.uk> writes:

> Or, to put it another way, the standard idiom in this case doesn't
> seem to address the problem of an exception leaving the resource in
> question in an unstable state. Nor does it do anything to mitigate
> the effects of accidentally omitting (or wrongly positioning) one of
> the seize or release calls.

?

critical : declare
   l : Lock;
begin
   critical stuff
end critical;

* No seize/release calls

* Finalization on exit from critical region for whatever reason
  (including exceptions)